$\"\"$

The equation is $\"\"$ .

Apply division property of equality: $\"\"$ then $\"\"$ .

Divide each side by negative 7.

$\"\"$

$\"\"$ .

To check the solution, substitute the value of $\"\"$ in the original equation $\"\"$ .

$\"\"$

$\"\"$ .

This is true, therefore solution of the equation $\"\"$ is 8. $\"\"$

The solution is 8.